Ive had an SCT tuner for a long ass time. It was previously used for a v6 mustang. I have upgraded to a gt and want to use my tuner for it. Ive returned the v6 to stock and updated the tuner. I know I need to get nee tunes for it since its a different motor. But I talked to other people saying I still have to "unmarry" it. What does that mean and what else do I need to do so I can use it? Also does anyone know someone that does good tunes for a decent price? Thanks everyone!